Angles: Linear, Vertical, Supplementary, and Completmentary

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal in measure.

Front

What are complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

What are adjacent angles?

Back

Adjacent angles are two angles that share a common side and a common vertex but do not overlap.

Front

If ∠H and ∠J are complementary and ∠H = 35°, what is ∠J?

Back

∠J = 55°.

Front

If ∠AOB and ∠COB are adjacent angles, what can be said about their measures?

Back

The sum of the measures of ∠AOB and ∠COB is equal to the measure of the angle formed by the two rays.

Front

What is the measure of a right angle?

Back

A right angle measures 90 degrees.

Front

What is the measure of a straight angle?

Back

A straight angle measures 180 degrees.

Front

If two angles are vertical angles, what can be said about their measures?

Back

Vertical angles are equal in measure.

Front

Find the missing angle if one angle is 43° and they are complementary.

Back

The missing angle is 47°.